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Be .it known um I," W. n.' Gmns'ns of'Newark, in the coun of Essex, und 'Stute of New the production of sunken Work, smooth und peni-ct on the sides as on the bottom.

' four cylinders, said slide bein block, support, the-casting. B, in which are four cylinf "s, the piston-rod in the centre cylinder. v

...tiene ireann Mennitti wer/@iwuw. D. emmener?, or NEWARK, new. JQa'nssr.

Lettere Patent-No. 84,525, dated December l muevan/:ENT m s TAI/IPS AND DIES PQR' SHEET-DETAIL...

.To llvwho/m 'it 'ma/y concern w, the city Jersey, have invented an Improved Steam, lx'ieumat-ic, "r Hydraulic Compound Cylinder-Engine lrcss, for Shaping Forms from Shet-Meta.l; and l do hereby declare the following to be afull and exact description of the same, reference boing hdd herein to the drawings accompanying this specification, part of the same.

The nature of my invention consists in swinging, adapting, and employing several eyiinilers with pistons to give varied pressures upon the sheet, required for Figure 1, in the drawin press and its parts; ,1.

Figure 2 is a view taken in sect to vthe supporting-pillars;

gs, is n. front View oi' the ion nl .ft-iightangle Figure 3, ,is a parallel plu-n ol' the tup pluie, shearing valve-chests, valves, ports,and passages; and Figure 4 is a slide, attached to the tour pistons ol g guided in motion by the four supporting-pinzas.

The same letters refer to the saune ports. i n ea eh figure.

Uponl a suitable foun .erly secured.

Fourpillars,

(lation a buse-block, A, is propz? z z3 2*, standing up from the base-A ders, y' y2 gf y, equidistant from euch other, und in the centre a fifth cylinder, F, of larger diameter than the other four. 1 f

0n theupper sidel of the top'plzttc C, there are two receiy'ingchests, D and E, with valves and ports, the ports in D opening into circular' passages in the under side of thel plate C, the passage :c communicating with The receiving-chest E has in it`vulve and' ports, as in common stem-engines.' In the cent-re of the base-block A is Va die, u,"of the requiredferm, a suitable follower, beingattached'to ent, is-

A dsk, is placed in the middle of the slide, ng. 4,

havingan aperture in-its centre, through which the-fol- Y A lower t can freely pass, thc disk' being a plane surface, perfectly parallel to the face of the die u. "if

Iyvo treadlcs, q and p,'are connected with -the valverods by the levers o n from q, and m l from p.

The dat, thin metal plate' to be operated upon is placed upon the face of the dien.' 'The pressure of foot of the opemtor upon the treadle q, brings down the slide, fig. 4, upon the plete, and holds it so that in being drawn from between the disk and the die', the

metal can but be stretched.;

By the pressure of the footu-pon the txeadle p, the

follower t, ou thepiston-roda-is brought down, carrying the thin instal plete into the die, making'the .surface of the sides smooth by the stlain upon the motn as it comes from'the slide and the die. Thus 'from oni-r operating is produced adeeperdish, in-amishu'mtw, f f

than is non' produced by repeated blowsfrorn a drop' in the ordinary way. l This press can be operated either by steam, water, er compressed air.- l prefer combined waterandnir.

What- I ela-im, and desire to secure by Letters Pa;

` 1. The employment of four cylinders, y'lvy Acorn- .bined -with the mnu cylinder F,to equalize the pressureupon the four corners of Athe guideqilate H, iig. 4, .when

descending on the four guide-posts'z z? z z', 'con, d, and arranged, substantially as 'set structd, adapte forth.

2. 'lhc top plate. C, with circularipassages x, mand fv,iu combination .w and shown.v

- 3. The lcrexsom n.1,and thetreadlespandq, when i y combined with the five cylinders for "grduati 11g the' ith the fire cylinders, as specified 

